Timestamp
Unix Timestamp Converter
Turn a Unix timestamp into UTC, local time and ISO 8601.
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61 free tools for working with Unix time, dates, configurations, and developer workflows. Most tools run instantly in your browser. Some Labs and Cloud features use peer-to-peer signaling or encrypted cloud storage.
Timestamp (7)
Timestamp
Epoch Converter
See epoch seconds and milliseconds side by side, with UTC and local time.
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Timestamp to Date
Readable date, weekday, day of year and ISO week from a timestamp.
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Date to Timestamp
Convert a date, time and time zone into a Unix timestamp.
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Current Unix Timestamp
Live Unix time in seconds and milliseconds. Copy, pause or refresh.
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Milliseconds to Date
Convert Unix milliseconds, such as Date.now() values, to a date.
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Epoch Milliseconds Converter
Epoch milliseconds to a readable date, in UTC, local time and ISO 8601.
Open toolDate & Duration (5)
Date & Duration
Timestamp Difference
Find the time between two timestamps as a duration.
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Date Difference Calculator
Years, months, weeks and days between two dates, leap years included.
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Time Duration Calculator
Elapsed time between two clock times, midnight crossings included.
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Add Time Calculator
Add seconds, minutes, hours, days or weeks to a date and time.
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Subtract Time Calculator
Subtract seconds, minutes, hours, days or weeks from a date and time.
Open toolTime Zones (6)
Time Zones
Timezone Converter
Convert time between zones and compare cities side by side.
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UTC Converter
Convert between local time and UTC in any time zone.
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Time Zone Offset Calculator
Compare the UTC offset of two time zones and the gap between them.
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World Clock
Live local time in several cities at once, with day and night shown.
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Business Hours Converter
Compare working hours across time zones and find the overlap for meetings.
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Timezone Travel Simulator
Visual timeline for debugging global events across regions.
Open toolDeveloper (33)
Developer
JSON to TypeScript
Convert JSON strings to TypeScript interfaces.
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Diff Checker
Compare text or code line by line.
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JSON Formatter & Validator
Format, validate, minify, and sort JSON keys in your browser.
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Base64 Encode / Decode
Encode and decode Base64 with UTF-8 Unicode and URL-safe support.
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JWT Decoder
Decode and inspect JSON Web Tokens (JWT) header and payload locally.
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UUID Generator
Generate cryptographically secure UUID v4 and v7 identifiers in bulk.
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Hash Generator
Generate SHA-256, SHA-512, SHA-1, and MD5 hashes for text and files.
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Gigantic JSON Viewer
Parse and view gigantic JSON files locally.
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ISO 8601 to Unix
Turn an ISO 8601 date-time string into a Unix timestamp.
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Unix to ISO 8601
Get an ISO 8601 string in UTC or with your local offset.
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Unix Timestamp Validator
Check whether a value is a valid Unix timestamp, with a clear reason if not.
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Unix Timestamp Batch Converter
Convert a whole list of Unix timestamps at once, with CSV export.
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Date Format Converter
One date in, every common format out: ISO 8601, RFC 2822, RFC 3339, Unix and more.
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ISO 8601 Converter
ISO 8601 to Unix time and back, in one combined tool.
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RFC 3339 Converter
RFC 3339 to Unix time and back, the strict internet date-time format.
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Cron Expression Generator
Build a cron expression and see a plain-English explanation of its schedule.
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Universal Config Sync
Real-time sync between JSON, YAML, and TOML.
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Zero-Knowledge .env Vault
End-to-End encrypted .env sharing.
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Universal Secret Scanner
Find leaked secrets in code before committing.
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Shadow API Load Tester
Real-time API stress testing and latency charts.
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Docker Architecture Visualizer
Generate diagrams from docker-compose.yml.
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In-Browser SQLite Fiddle
Run SQLite entirely in your browser via WASM.
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Code to Image Generator
Convert code snippets into beautiful images with gradients.
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CSS Glassmorphism Generator
Generate frosted glass UI styles in CSS & Tailwind.
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GitHub README Builder
Build dynamic GitHub profile READMEs with badges and live stats.
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App & Screenshot Mockup Studio
Turn screenshots into 3D framed device mockups for Mac and iPhone.
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Favicon & App Icon Generator
Generate multi-size favicon packages and HTML head tags.
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Color Code Converter & Palette Studio
Convert colors between HEX, RGB, HSL, and Tailwind CSS tokens.
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LLM Token & Cost Visualizer
Visualize BPE tokens and calculate real-time LLM API costs.
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Git Disaster Recovery & Time-Traveler
Rescue lost commits, undo hard resets, and escape Git merge disasters.
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SVG Keyframe Animator & Studio
Turn static SVG icons into animated CSS & Framer Motion vectors.
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Synthetic Mock Data Studio
Generate realistic synthetic datasets in JSON, TypeScript, and SQL.
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CyberChef & Magic Decoder
Auto-detect and decode Base64, JWT, Hex, ciphers, and hash pipelines.
Open toolLabs (10)
Experimental toolsAdvanced experiments in browser-to-browser networking, steganography, AST manipulation, and client-side computing.
Labs
Service Worker API Mocker
Generate local fetch interceptor scripts to mock API endpoints.
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P2P Ghost Tunnel
Share localhost via direct P2P WebRTC connection.
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Steganography Env Vault
Hide encrypted .env files inside PNG image pixels.
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Holographic JSON Explorer
Explore massive JSON architectures in a 3D WebGL universe.
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Genetic Regex Auto-Healer
Evolve perfect Regex using local genetic algorithms.
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Chrono-Debug API Replay
Replay past API states using a visual timeline scrubber.
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AST Conflict Telepathy
Semantically merge Git conflicts using AST logic parsing.
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NexusGrid
Decentralized WebGPU Supercomputer running local AI workloads.
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Sonic-Gap Bridge
Air-gapped ultrasonic acoustic data transfer protocol.
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Quantum Simulator
Browser-native quantum circuit execution via matrix tensors.
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